<template>
    <div class="person">
        <h2>姓名：{{ name }}</h2>
        <h2>年龄：{{ age }}</h2>
        <button @click="changeName">修改名字</button>
        <button @click="changeAge">修改年龄</button>
        <button @click="showTel">查看联系方式</button>
    </div>
</template>

<script lang="ts">
export default {
    name: 'Person',
}
</script>

<script setup lang="ts">
let name = '张三'
let age = 18
let tel = '138888888'

const changeName = () => {
    name = '李四' // 因为name不是响应式的,这样修改name,页面不会变化
    console.log(name) // name的值有变化,但这个变化不会反应在页面上
}
const changeAge = () => {
    age++
}
const showTel = () => {
    alert(tel)
}
</script>

<style scoped>
.person {
    background-color: skyblue;
    box-shadow: 0 0 10px;
    border-radius: 10px;
    padding: 20px;
}

button {
    margin: 0 2px;
}
</style>